An index that refers to a byte offset in a text run. This could
the middle of a glyph.
This data structure represents the various optional descriptors that can be
applied to a
@font-face rule in CSS. These are used to create a
FontTemplate
from the given font data used as the source of the
@font-face rule. If values
like weight, stretch, and style are not specified they are initialized based
on the contents of the font itself.
The public interface to the font cache thread, used by per-thread FontContext instances (via
the FontSource trait), and also by layout.
The FontContext represents the per-thread/thread state necessary for
working with fonts. It is the public API used by the layout and
paint code. It talks directly to the font cache thread where
required.
FontDescriptor describes the parameters of a Font. It represents rendering a given font
template at a particular size, with a particular font-variant-caps applied, etc. This contrasts
with FontTemplateDescriptor in that the latter represents only the parameters inherent in the
font data (weight, stretch, etc.).
The font family parameters for font selection.
A FontGroup is a prioritised list of fonts for a given set of font styles. It is used by
TextRun to decide which font to render a character with. If none of the fonts listed in the
styles are suitable, a fallback font may be used.
This describes all the information needed to create
font instance handles. It contains a unique
FontTemplateData structure that is platform specific.
Describes how to select a font from a given family. This is very basic at the moment and needs
to be expanded or refactored when we support more of the font styling parameters.
A list of font templates that make up a given font family.
GlyphEntry is a port of Gecko’s CompressedGlyph scheme for storing glyph data compactly.
A single series of glyphs within a text run.
Stores the glyph data belonging to a text run.
Various options that control text shaping.